diff options
Diffstat (limited to 'openssl/engines/ccgost')
| -rw-r--r-- | openssl/engines/ccgost/Makefile | 18 | ||||
| -rw-r--r-- | openssl/engines/ccgost/e_gost_err.c | 3 | ||||
| -rw-r--r-- | openssl/engines/ccgost/e_gost_err.h | 1 | ||||
| -rw-r--r-- | openssl/engines/ccgost/gost2001.c | 229 | ||||
| -rw-r--r-- | openssl/engines/ccgost/gost94_keyx.c | 6 | ||||
| -rw-r--r-- | openssl/engines/ccgost/gost_ameth.c | 36 | ||||
| -rw-r--r-- | openssl/engines/ccgost/gost_pmeth.c | 2 | ||||
| -rw-r--r-- | openssl/engines/ccgost/gost_sign.c | 87 |
8 files changed, 297 insertions, 85 deletions
diff --git a/openssl/engines/ccgost/Makefile b/openssl/engines/ccgost/Makefile index d661c1082..4e183a467 100644 --- a/openssl/engines/ccgost/Makefile +++ b/openssl/engines/ccgost/Makefile @@ -66,12 +66,13 @@ links: tests: -depend: - @if [ -z "$(THIS)" ]; then \ - $(MAKE) -f $(TOP)/Makefile reflect THIS=$@; \ - else \ - $(MAKEDEPEND) -- $(CFLAG) $(INCLUDES) $(DEPFLAG) -- $(PROGS) $(LIBSRC); \ - fi +update: local_depend + @if [ -z "$(THIS)" ]; then $(MAKE) -f $(TOP)/Makefile reflect THIS=$@; fi + +depend: local_depend + @if [ -z "$(THIS)" ]; then $(MAKE) -f $(TOP)/Makefile reflect THIS=$@; fi +local_depend: + @[ -z "$(THIS)" ] || $(MAKEDEPEND) -- $(CFLAG) $(INCLUDES) $(DEPFLAG) -- $(PROGS) $(LIBSRC) files: @@ -262,8 +263,9 @@ gost_sign.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h gost_sign.o: ../../include/openssl/dsa.h ../../include/openssl/e_os2.h gost_sign.o: ../../include/openssl/ec.h ../../include/openssl/ecdh.h gost_sign.o: ../../include/openssl/ecdsa.h ../../include/openssl/engine.h -gost_sign.o: ../../include/openssl/evp.h ../../include/openssl/lhash.h -gost_sign.o: ../../include/openssl/obj_mac.h ../../include/openssl/objects.h +gost_sign.o: ../../include/openssl/err.h ../../include/openssl/evp.h +gost_sign.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h +gost_sign.o: ../../include/openssl/objects.h gost_sign.o: ../../include/openssl/opensslconf.h gost_sign.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h gost_sign.o: ../../include/openssl/pkcs7.h ../../include/openssl/rand.h diff --git a/openssl/engines/ccgost/e_gost_err.c b/openssl/engines/ccgost/e_gost_err.c index 3201b648f..80ef58f8c 100644 --- a/openssl/engines/ccgost/e_gost_err.c +++ b/openssl/engines/ccgost/e_gost_err.c @@ -1,6 +1,6 @@ /* e_gost_err.c */ /* ==================================================================== - * Copyright (c) 1999-2009 The OpenSSL Project. All rights reserved. + * Copyright (c) 1999-2015 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -90,6 +90,7 @@ static ERR_STRING_DATA GOST_str_functs[] = { {ERR_FUNC(GOST_F_GOST_IMIT_CTRL), "GOST_IMIT_CTRL"}, {ERR_FUNC(GOST_F_GOST_IMIT_FINAL), "GOST_IMIT_FINAL"}, {ERR_FUNC(GOST_F_GOST_IMIT_UPDATE), "GOST_IMIT_UPDATE"}, + {ERR_FUNC(GOST_F_GOST_SIGN_KEYGEN), "GOST_SIGN_KEYGEN"}, {ERR_FUNC(GOST_F_PARAM_COPY_GOST01), "PARAM_COPY_GOST01"}, {ERR_FUNC(GOST_F_PARAM_COPY_GOST94), "PARAM_COPY_GOST94"}, {ERR_FUNC(GOST_F_PKEY_GOST01CP_DECRYPT), "PKEY_GOST01CP_DECRYPT"}, diff --git a/openssl/engines/ccgost/e_gost_err.h b/openssl/engines/ccgost/e_gost_err.h index 92be55845..a2018ec4d 100644 --- a/openssl/engines/ccgost/e_gost_err.h +++ b/openssl/engines/ccgost/e_gost_err.h @@ -90,6 +90,7 @@ void ERR_GOST_error(int function, int reason, char *file, int line); # define GOST_F_GOST_IMIT_CTRL 114 # define GOST_F_GOST_IMIT_FINAL 140 # define GOST_F_GOST_IMIT_UPDATE 115 +# define GOST_F_GOST_SIGN_KEYGEN 142 # define GOST_F_PARAM_COPY_GOST01 116 # define GOST_F_PARAM_COPY_GOST94 117 # define GOST_F_PKEY_GOST01CP_DECRYPT 118 diff --git a/openssl/engines/ccgost/gost2001.c b/openssl/engines/ccgost/gost2001.c index 2b9669482..953629543 100644 --- a/openssl/engines/ccgost/gost2001.c +++ b/openssl/engines/ccgost/gost2001.c @@ -41,6 +41,11 @@ int fill_GOST2001_params(EC_KEY *eckey, int nid) BN_CTX *ctx = BN_CTX_new(); int ok = 0; + if(!ctx) { + GOSTerr(GOST_F_FILL_GOST2001_PARAMS, ERR_R_MALLOC_FAILURE); + goto err; + } + BN_CTX_start(ctx); p = BN_CTX_get(ctx); a = BN_CTX_get(ctx); @@ -48,6 +53,10 @@ int fill_GOST2001_params(EC_KEY *eckey, int nid) x = BN_CTX_get(ctx); y = BN_CTX_get(ctx); q = BN_CTX_get(ctx); + if(!p || !a || !b || !x || !y || !q) { + GOSTerr(GOST_F_FILL_GOST2001_PARAMS, ERR_R_MALLOC_FAILURE); + goto err; + } while (params->nid != NID_undef && params->nid != nid) params++; if (params->nid == NID_undef) { @@ -55,18 +64,33 @@ int fill_GOST2001_params(EC_KEY *eckey, int nid) GOST_R_UNSUPPORTED_PARAMETER_SET); goto err; } - BN_hex2bn(&p, params->p); - BN_hex2bn(&a, params->a); - BN_hex2bn(&b, params->b); + if(!BN_hex2bn(&p, params->p) + || !BN_hex2bn(&a, params->a) + || !BN_hex2bn(&b, params->b)) { + GOSTerr(GOST_F_FILL_GOST2001_PARAMS, + ERR_R_INTERNAL_ERROR); + goto err; + } grp = EC_GROUP_new_curve_GFp(p, a, b, ctx); + if(!grp) { + GOSTerr(GOST_F_FILL_GOST2001_PARAMS, ERR_R_MALLOC_FAILURE); + goto err; + } P = EC_POINT_new(grp); + if(!P) { + GOSTerr(GOST_F_FILL_GOST2001_PARAMS, ERR_R_MALLOC_FAILURE); + goto err; + } - BN_hex2bn(&x, params->x); - BN_hex2bn(&y, params->y); - EC_POINT_set_affine_coordinates_GFp(grp, P, x, y, ctx); - BN_hex2bn(&q, params->q); + if(!BN_hex2bn(&x, params->x) + || !BN_hex2bn(&y, params->y) + || !EC_POINT_set_affine_coordinates_GFp(grp, P, x, y, ctx) + || !BN_hex2bn(&q, params->q)) { + GOSTerr(GOST_F_FILL_GOST2001_PARAMS, ERR_R_INTERNAL_ERROR); + goto err; + } #ifdef DEBUG_KEYS fprintf(stderr, "Set params index %d oid %s\nq=", (params - R3410_2001_paramset), OBJ_nid2sn(params->nid)); @@ -74,16 +98,23 @@ int fill_GOST2001_params(EC_KEY *eckey, int nid) fprintf(stderr, "\n"); #endif - EC_GROUP_set_generator(grp, P, q, NULL); + if(!EC_GROUP_set_generator(grp, P, q, NULL)) { + GOSTerr(GOST_F_FILL_GOST2001_PARAMS, ERR_R_INTERNAL_ERROR); + goto err; + } EC_GROUP_set_curve_name(grp, params->nid); - - EC_KEY_set_group(eckey, grp); + if(!EC_KEY_set_group(eckey, grp)) { + GOSTerr(GOST_F_FILL_GOST2001_PARAMS, ERR_R_INTERNAL_ERROR); + goto err; + } ok = 1; err: - EC_POINT_free(P); - EC_GROUP_free(grp); - BN_CTX_end(ctx); - BN_CTX_free(ctx); + if (P) EC_POINT_free(P); + if (grp) EC_GROUP_free(grp); + if (ctx) { + BN_CTX_end(ctx); + BN_CTX_free(ctx); + } return ok; } @@ -94,7 +125,7 @@ int fill_GOST2001_params(EC_KEY *eckey, int nid) */ DSA_SIG *gost2001_do_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey) { - DSA_SIG *newsig = NULL; + DSA_SIG *newsig = NULL, *ret = NULL; BIGNUM *md = hashsum2bn(dgst); BIGNUM *order = NULL; const EC_GROUP *group; @@ -103,6 +134,10 @@ DSA_SIG *gost2001_do_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey) NULL, *e = NULL; EC_POINT *C = NULL; BN_CTX *ctx = BN_CTX_new(); + if(!ctx || !md) { + GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_MALLOC_FAILURE); + goto err; + } BN_CTX_start(ctx); OPENSSL_assert(dlen == 32); newsig = DSA_SIG_new(); @@ -111,11 +146,25 @@ DSA_SIG *gost2001_do_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey) goto err; } group = EC_KEY_get0_group(eckey); + if(!group) { + GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_INTERNAL_ERROR); + goto err; + } order = BN_CTX_get(ctx); - EC_GROUP_get_order(group, order, ctx); + if(!order || !EC_GROUP_get_order(group, order, ctx)) { + GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_INTERNAL_ERROR); + goto err; + } priv_key = EC_KEY_get0_private_key(eckey); + if(!priv_key) { + GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_INTERNAL_ERROR); + goto err; + } e = BN_CTX_get(ctx); - BN_mod(e, md, order, ctx); + if(!e || !BN_mod(e, md, order, ctx)) { + GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_INTERNAL_ERROR); + goto err; + } #ifdef DEBUG_SIGN fprintf(stderr, "digest as bignum="); BN_print_fp(stderr, md); @@ -128,55 +177,80 @@ DSA_SIG *gost2001_do_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey) } k = BN_CTX_get(ctx); C = EC_POINT_new(group); + if(!k || !C) { + GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_MALLOC_FAILURE); + goto err; + } do { do { if (!BN_rand_range(k, order)) { GOSTerr(GOST_F_GOST2001_DO_SIGN, GOST_R_RANDOM_NUMBER_GENERATOR_FAILED); - DSA_SIG_free(newsig); - newsig = NULL; goto err; } if (!EC_POINT_mul(group, C, k, NULL, NULL, ctx)) { GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_EC_LIB); - DSA_SIG_free(newsig); - newsig = NULL; goto err; } if (!X) X = BN_CTX_get(ctx); + if (!r) + r = BN_CTX_get(ctx); + if (!X || !r) { + GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_MALLOC_FAILURE); + goto err; + } if (!EC_POINT_get_affine_coordinates_GFp(group, C, X, NULL, ctx)) { GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_EC_LIB); - DSA_SIG_free(newsig); - newsig = NULL; goto err; } - if (!r) - r = BN_CTX_get(ctx); - BN_nnmod(r, X, order, ctx); + + if(!BN_nnmod(r, X, order, ctx)) { + GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_INTERNAL_ERROR); + goto err; + } } while (BN_is_zero(r)); /* s = (r*priv_key+k*e) mod order */ if (!tmp) tmp = BN_CTX_get(ctx); - BN_mod_mul(tmp, priv_key, r, order, ctx); if (!tmp2) tmp2 = BN_CTX_get(ctx); - BN_mod_mul(tmp2, k, e, order, ctx); if (!s) s = BN_CTX_get(ctx); - BN_mod_add(s, tmp, tmp2, order, ctx); + if (!tmp || !tmp2 || !s) { + GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_MALLOC_FAILURE); + goto err; + } + + if(!BN_mod_mul(tmp, priv_key, r, order, ctx) + || !BN_mod_mul(tmp2, k, e, order, ctx) + || !BN_mod_add(s, tmp, tmp2, order, ctx)) { + GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_INTERNAL_ERROR); + goto err; + } } while (BN_is_zero(s)); newsig->s = BN_dup(s); newsig->r = BN_dup(r); + if(!newsig->s || !newsig->r) { + GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_MALLOC_FAILURE); + goto err; + } + + ret = newsig; err: - BN_CTX_end(ctx); - BN_CTX_free(ctx); - EC_POINT_free(C); - BN_free(md); - return newsig; + if(ctx) { + BN_CTX_end(ctx); + BN_CTX_free(ctx); + } + if (C) EC_POINT_free(C); + if (md) BN_free(md); + if (!ret && newsig) { + DSA_SIG_free(newsig); + } + return ret; } /* @@ -196,6 +270,11 @@ int gost2001_do_verify(const unsigned char *dgst, int dgst_len, const EC_POINT *pub_key = NULL; int ok = 0; + if(!ctx || !group) { + GOSTerr(GOST_F_GOST2001_DO_VERIFY, ERR_R_INTERNAL_ERROR); + goto err; + } + BN_CTX_start(ctx); order = BN_CTX_get(ctx); e = BN_CTX_get(ctx); @@ -205,9 +284,17 @@ int gost2001_do_verify(const unsigned char *dgst, int dgst_len, X = BN_CTX_get(ctx); R = BN_CTX_get(ctx); v = BN_CTX_get(ctx); + if(!order || !e || !z1 || !z2 || !tmp || !X || !R || !v) { + GOSTerr(GOST_F_GOST2001_DO_VERIFY, ERR_R_MALLOC_FAILURE); + goto err; + } - EC_GROUP_get_order(group, order, ctx); pub_key = EC_KEY_get0_public_key(ec); + if(!pub_key || !EC_GROUP_get_order(group, order, ctx)) { + GOSTerr(GOST_F_GOST2001_DO_VERIFY, ERR_R_INTERNAL_ERROR); + goto err; + } + if (BN_is_zero(sig->s) || BN_is_zero(sig->r) || (BN_cmp(sig->s, order) >= 1) || (BN_cmp(sig->r, order) >= 1)) { GOSTerr(GOST_F_GOST2001_DO_VERIFY, @@ -217,19 +304,28 @@ int gost2001_do_verify(const unsigned char *dgst, int dgst_len, } md = hashsum2bn(dgst); - BN_mod(e, md, order, ctx); + if(!md || !BN_mod(e, md, order, ctx)) { + GOSTerr(GOST_F_GOST2001_DO_VERIFY, ERR_R_INTERNAL_ERROR); + goto err; + } #ifdef DEBUG_SIGN fprintf(stderr, "digest as bignum: "); BN_print_fp(stderr, md); fprintf(stderr, "\ndigest mod q: "); BN_print_fp(stderr, e); #endif - if (BN_is_zero(e)) - BN_one(e); + if (BN_is_zero(e) && !BN_one(e)) { + GOSTerr(GOST_F_GOST2001_DO_VERIFY, ERR_R_INTERNAL_ERROR); + goto err; + } v = BN_mod_inverse(v, e, order, ctx); - BN_mod_mul(z1, sig->s, v, order, ctx); - BN_sub(tmp, order, sig->r); - BN_mod_mul(z2, tmp, v, order, ctx); + if(!v + || !BN_mod_mul(z1, sig->s, v, order, ctx) + || !BN_sub(tmp, order, sig->r) + || !BN_mod_mul(z2, tmp, v, order, ctx)) { + GOSTerr(GOST_F_GOST2001_DO_VERIFY, ERR_R_INTERNAL_ERROR); + goto err; + } #ifdef DEBUG_SIGN fprintf(stderr, "\nInverted digest value: "); BN_print_fp(stderr, v); @@ -239,6 +335,10 @@ int gost2001_do_verify(const unsigned char *dgst, int dgst_len, BN_print_fp(stderr, z2); #endif C = EC_POINT_new(group); + if (!C) { + GOSTerr(GOST_F_GOST2001_DO_VERIFY, ERR_R_MALLOC_FAILURE); + goto err; + } if (!EC_POINT_mul(group, C, z1, pub_key, z2, ctx)) { GOSTerr(GOST_F_GOST2001_DO_VERIFY, ERR_R_EC_LIB); goto err; @@ -247,7 +347,10 @@ int gost2001_do_verify(const unsigned char *dgst, int dgst_len, GOSTerr(GOST_F_GOST2001_DO_VERIFY, ERR_R_EC_LIB); goto err; } - BN_mod(R, X, order, ctx); + if(!BN_mod(R, X, order, ctx)) { + GOSTerr(GOST_F_GOST2001_DO_VERIFY, ERR_R_INTERNAL_ERROR); + goto err; + } #ifdef DEBUG_SIGN fprintf(stderr, "\nX="); BN_print_fp(stderr, X); @@ -261,10 +364,12 @@ int gost2001_do_verify(const unsigned char *dgst, int dgst_len, ok = 1; } err: - EC_POINT_free(C); - BN_CTX_end(ctx); - BN_CTX_free(ctx); - BN_free(md); + if (C) EC_POINT_free(C); + if (ctx) { + BN_CTX_end(ctx); + BN_CTX_free(ctx); + } + if (md) BN_free(md); return ok; } @@ -287,6 +392,10 @@ int gost2001_compute_public(EC_KEY *ec) return 0; } ctx = BN_CTX_new(); + if(!ctx) { + GOSTerr(GOST_F_GOST2001_COMPUTE_PUBLIC, ERR_R_MALLOC_FAILURE); + goto err; + } BN_CTX_start(ctx); if (!(priv_key = EC_KEY_get0_private_key(ec))) { GOSTerr(GOST_F_GOST2001_COMPUTE_PUBLIC, ERR_R_EC_LIB); @@ -294,6 +403,10 @@ int gost2001_compute_public(EC_KEY *ec) } pub_key = EC_POINT_new(group); + if(!pub_key) { + GOSTerr(GOST_F_GOST2001_COMPUTE_PUBLIC, ERR_R_MALLOC_FAILURE); + goto err; + } if (!EC_POINT_mul(group, pub_key, priv_key, NULL, NULL, ctx)) { GOSTerr(GOST_F_GOST2001_COMPUTE_PUBLIC, ERR_R_EC_LIB); goto err; @@ -304,9 +417,11 @@ int gost2001_compute_public(EC_KEY *ec) } ok = 256; err: - BN_CTX_end(ctx); - EC_POINT_free(pub_key); - BN_CTX_free(ctx); + if (pub_key) EC_POINT_free(pub_key); + if (ctx) { + BN_CTX_end(ctx); + BN_CTX_free(ctx); + } return ok; } @@ -320,7 +435,13 @@ int gost2001_keygen(EC_KEY *ec) { BIGNUM *order = BN_new(), *d = BN_new(); const EC_GROUP *group = EC_KEY_get0_group(ec); - EC_GROUP_get_order(group, order, NULL); + + if(!group || !EC_GROUP_get_order(group, order, NULL)) { + GOSTerr(GOST_F_GOST2001_KEYGEN, ERR_R_INTERNAL_ERROR); + BN_free(d); + BN_free(order); + return 0; + } do { if (!BN_rand_range(d, order)) { @@ -332,7 +453,13 @@ int gost2001_keygen(EC_KEY *ec) } } while (BN_is_zero(d)); - EC_KEY_set_private_key(ec, d); + + if(!EC_KEY_set_private_key(ec, d)) { + GOSTerr(GOST_F_GOST2001_KEYGEN, ERR_R_INTERNAL_ERROR); + BN_free(d); + BN_free(order); + return 0; + } BN_free(d); BN_free(order); return gost2001_compute_public(ec); diff --git a/openssl/engines/ccgost/gost94_keyx.c b/openssl/engines/ccgost/gost94_keyx.c index 85f4bc899..ce57f17cb 100644 --- a/openssl/engines/ccgost/gost94_keyx.c +++ b/openssl/engines/ccgost/gost94_keyx.c @@ -104,6 +104,7 @@ int pkey_GOST94cp_encrypt(EVP_PKEY_CTX *ctx, unsigned char *out, struct gost_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx); gost_ctx cctx; int key_is_ephemeral = 1; + int tmp_outlen; EVP_PKEY *mykey = EVP_PKEY_CTX_get0_peerkey(ctx); /* Do not use vizir cipher parameters with cryptopro */ @@ -174,12 +175,13 @@ int pkey_GOST94cp_encrypt(EVP_PKEY_CTX *ctx, unsigned char *out, } ASN1_OBJECT_free(gkt->key_agreement_info->cipher); gkt->key_agreement_info->cipher = OBJ_nid2obj(param->nid); - *outlen = i2d_GOST_KEY_TRANSPORT(gkt, out ? &out : NULL); - if (*outlen <= 0) { + tmp_outlen = i2d_GOST_KEY_TRANSPORT(gkt, out ? &out : NULL); + if (tmp_outlen <= 0) { GOSTerr(GOST_F_PKEY_GOST94CP_ENCRYPT, GOST_R_ERROR_PACKING_KEY_TRANSPORT_INFO); goto err; } + *outlen = tmp_outlen; if (!key_is_ephemeral) { /* Set control "public key from client certificate used" */ if (EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_PEER_KEY, 3, NULL) <= diff --git a/openssl/engines/ccgost/gost_ameth.c b/openssl/engines/ccgost/gost_ameth.c index 713a0face..b7c5354c1 100644 --- a/openssl/engines/ccgost/gost_ameth.c +++ b/openssl/engines/ccgost/gost_ameth.c @@ -115,7 +115,10 @@ static int decode_gost_algor_params(EVP_PKEY *pkey, X509_ALGOR *palg) } param_nid = OBJ_obj2nid(gkp->key_params); GOST_KEY_PARAMS_free(gkp); - EVP_PKEY_set_type(pkey, pkey_nid); + if(!EVP_PKEY_set_type(pkey, pkey_nid)) { + GOSTerr(GOST_F_DECODE_GOST_ALGOR_PARAMS, ERR_R_INTERNAL_ERROR); + return 0; + } switch (pkey_nid) { case NID_id_GostR3410_94: { @@ -552,9 +555,19 @@ static int param_copy_gost01(EVP_PKEY *to, const EVP_PKEY *from) } if (!eto) { eto = EC_KEY_new(); - EVP_PKEY_assign(to, EVP_PKEY_base_id(from), eto); + if(!eto) { + GOSTerr(GOST_F_PARAM_COPY_GOST01, ERR_R_MALLOC_FAILURE); + return 0; + } + if(!EVP_PKEY_assign(to, EVP_PKEY_base_id(from), eto)) { + GOSTerr(GOST_F_PARAM_COPY_GOST01, ERR_R_INTERNAL_ERROR); + return 0; + } + } + if(!EC_KEY_set_group(eto, EC_KEY_get0_group(efrom))) { + GOSTerr(GOST_F_PARAM_COPY_GOST01, ERR_R_INTERNAL_ERROR); + return 0; } - EC_KEY_set_group(eto, EC_KEY_get0_group(efrom)); if (EC_KEY_get0_private_key(eto)) { gost2001_compute_public(eto); } @@ -729,8 +742,21 @@ static int pub_encode_gost01(X509_PUBKEY *pub, const EVP_PKEY *pk) } X = BN_new(); Y = BN_new(); - EC_POINT_get_affine_coordinates_GFp(EC_KEY_get0_group(ec), - pub_key, X, Y, NULL); + if(!X || !Y) { + GOSTerr(GOST_F_PUB_ENCODE_GOST01, ERR_R_MALLOC_FAILURE); + if(X) BN_free(X); + if(Y) BN_free(Y); + BN_free(order); + return 0; + } + if(!EC_POINT_get_affine_coordinates_GFp(EC_KEY_get0_group(ec), + pub_key, X, Y, NULL)) { + GOSTerr(GOST_F_PUB_ENCODE_GOST01, ERR_R_INTERNAL_ERROR); + BN_free(X); + BN_free(Y); + BN_free(order); + return 0; + } data_len = 2 * BN_num_bytes(order); BN_free(order); databuf = OPENSSL_malloc(data_len); diff --git a/openssl/engines/ccgost/gost_pmeth.c b/openssl/engines/ccgost/gost_pmeth.c index 9af7b06d4..b6275b255 100644 --- a/openssl/engines/ccgost/gost_pmeth.c +++ b/openssl/engines/ccgost/gost_pmeth.c @@ -502,7 +502,7 @@ static int pkey_gost_mac_ctrl_str(EVP_PKEY_CTX *ctx, long keylen; int ret; unsigned char *keybuf = string_to_hex(value, &keylen); - if (keylen != 32) { + if (!keybuf || keylen != 32) { GOSTerr(GOST_F_PKEY_GOST_MAC_CTRL_STR, GOST_R_INVALID_MAC_KEY_LENGTH); OPENSSL_free(keybuf); diff --git a/openssl/engines/ccgost/gost_sign.c b/openssl/engines/ccgost/gost_sign.c index 0116e4740..07ad921ab 100644 --- a/openssl/engines/ccgost/gost_sign.c +++ b/openssl/engines/ccgost/gost_sign.c @@ -12,6 +12,7 @@ #include <openssl/bn.h> #include <openssl/dsa.h> #include <openssl/evp.h> +#include <openssl/err.h> #include "gost_params.h" #include "gost_lcl.h" @@ -52,11 +53,16 @@ void dump_dsa_sig(const char *message, DSA_SIG *sig) DSA_SIG *gost_do_sign(const unsigned char *dgst, int dlen, DSA *dsa) { BIGNUM *k = NULL, *tmp = NULL, *tmp2 = NULL; - DSA_SIG *newsig = DSA_SIG_new(); + DSA_SIG *newsig = NULL, *ret = NULL; BIGNUM *md = hashsum2bn(dgst); /* check if H(M) mod q is zero */ BN_CTX *ctx = BN_CTX_new(); + if(!ctx) { + GOSTerr(GOST_F_GOST_DO_SIGN, ERR_R_MALLOC_FAILURE); + goto err; + } BN_CTX_start(ctx); + newsig = DSA_SIG_new(); if (!newsig) { GOSTerr(GOST_F_GOST_DO_SIGN, GOST_R_NO_MEMORY); goto err; @@ -64,6 +70,10 @@ DSA_SIG *gost_do_sign(const unsigned char *dgst, int dlen, DSA *dsa) tmp = BN_CTX_get(ctx); k = BN_CTX_get(ctx); tmp2 = BN_CTX_get(ctx); + if(!tmp || !k || !tmp2) { + GOSTerr(GOST_F_GOST_DO_SIGN, ERR_R_MALLOC_FAILURE); + goto err; + } BN_mod(tmp, md, dsa->q, ctx); if (BN_is_zero(tmp)) { BN_one(md); @@ -76,24 +86,41 @@ DSA_SIG *gost_do_sign(const unsigned char *dgst, int dlen, DSA *dsa) BN_rand_range(k, dsa->q); /* generate r = (a^x mod p) mod q */ BN_mod_exp(tmp, dsa->g, k, dsa->p, ctx); - if (!(newsig->r)) + if (!(newsig->r)) { newsig->r = BN_new(); + if(!newsig->r) { + GOSTerr(GOST_F_GOST_DO_SIGN, ERR_R_MALLOC_FAILURE); + goto err; + } + } BN_mod(newsig->r, tmp, dsa->q, ctx); } while (BN_is_zero(newsig->r)); /* generate s = (xr + k(Hm)) mod q */ BN_mod_mul(tmp, dsa->priv_key, newsig->r, dsa->q, ctx); BN_mod_mul(tmp2, k, md, dsa->q, ctx); - if (!newsig->s) + if (!newsig->s) { newsig->s = BN_new(); + if(!newsig->s) { + GOSTerr(GOST_F_GOST_DO_SIGN, ERR_R_MALLOC_FAILURE); + goto err; + } + } BN_mod_add(newsig->s, tmp, tmp2, dsa->q, ctx); } while (BN_is_zero(newsig->s)); + + ret = newsig; err: BN_free(md); - BN_CTX_end(ctx); - BN_CTX_free(ctx); - return newsig; + if(ctx) { + BN_CTX_end(ctx); + BN_CTX_free(ctx); + } + if(!ret && newsig) { + DSA_SIG_free(newsig); + } + return ret; } /* @@ -135,17 +162,21 @@ int pack_sign_cp(DSA_SIG *s, int order, unsigned char *sig, size_t *siglen) int gost_do_verify(const unsigned char *dgst, int dgst_len, DSA_SIG *sig, DSA *dsa) { - BIGNUM *md, *tmp = NULL; + BIGNUM *md = NULL, *tmp = NULL; BIGNUM *q2 = NULL; BIGNUM *u = NULL, *v = NULL, *z1 = NULL, *z2 = NULL; BIGNUM *tmp2 = NULL, *tmp3 = NULL; - int ok; + int ok = 0; BN_CTX *ctx = BN_CTX_new(); + if(!ctx) { + GOSTerr(GOST_F_GOST_DO_VERIFY, ERR_R_MALLOC_FAILURE); + goto err; + } BN_CTX_start(ctx); if (BN_cmp(sig->s, dsa->q) >= 1 || BN_cmp(sig->r, dsa->q) >= 1) { GOSTerr(GOST_F_GOST_DO_VERIFY, GOST_R_SIGNATURE_PARTS_GREATER_THAN_Q); - return 0; + goto err; } md = hashsum2bn(dgst); @@ -157,6 +188,10 @@ int gost_do_verify(const unsigned char *dgst, int dgst_len, tmp2 = BN_CTX_get(ctx); tmp3 = BN_CTX_get(ctx); u = BN_CTX_get(ctx); + if(!tmp || !v || !q2 || !z1 || !z2 || !tmp2 || !tmp3 || !u) { + GOSTerr(GOST_F_GOST_DO_VERIFY, ERR_R_MALLOC_FAILURE); + goto err; + } BN_mod(tmp, md, dsa->q, ctx); if (BN_is_zero(tmp)) { @@ -172,15 +207,18 @@ int gost_do_verify(const unsigned char *dgst, int dgst_len, BN_mod_exp(tmp2, dsa->pub_key, z2, dsa->p, ctx); BN_mod_mul(tmp3, tmp, tmp2, dsa->p, ctx); BN_mod(u, tmp3, dsa->q, ctx); - ok = BN_cmp(u, sig->r); + ok = (BN_cmp(u, sig->r) == 0); - BN_free(md); - BN_CTX_end(ctx); - BN_CTX_free(ctx); - if (ok != 0) { + if (!ok) { GOSTerr(GOST_F_GOST_DO_VERIFY, GOST_R_SIGNATURE_MISMATCH); } - return (ok == 0); +err: + if(md) BN_free(md); + if(ctx) { + BN_CTX_end(ctx); + BN_CTX_free(ctx); + } + return ok; } /* @@ -190,13 +228,24 @@ int gost_do_verify(const unsigned char *dgst, int dgst_len, int gost94_compute_public(DSA *dsa) { /* Now fill algorithm parameters with correct values */ - BN_CTX *ctx = BN_CTX_new(); + BN_CTX *ctx; if (!dsa->g) { GOSTerr(GOST_F_GOST94_COMPUTE_PUBLIC, GOST_R_KEY_IS_NOT_INITALIZED); return 0; } - /* Compute public key y = a^x mod p */ + ctx = BN_CTX_new(); + if(!ctx) { + GOSTerr(GOST_F_GOST94_COMPUTE_PUBLIC, ERR_R_MALLOC_FAILURE); + return 0; + } + dsa->pub_key = BN_new(); + if(!dsa->pub_key) { + GOSTerr(GOST_F_GOST94_COMPUTE_PUBLIC, ERR_R_MALLOC_FAILURE); + BN_CTX_free(ctx); + return 0; + } + /* Compute public key y = a^x mod p */ BN_mod_exp(dsa->pub_key, dsa->g, dsa->priv_key, dsa->p, ctx); BN_CTX_free(ctx); return 1; @@ -243,6 +292,10 @@ int fill_GOST94_params(DSA *dsa, int nid) int gost_sign_keygen(DSA *dsa) { dsa->priv_key = BN_new(); + if(!dsa->priv_key) { + GOSTerr(GOST_F_GOST_SIGN_KEYGEN, ERR_R_MALLOC_FAILURE); + return 0; + } BN_rand_range(dsa->priv_key, dsa->q); return gost94_compute_public(dsa); } |